# Raccoon infestation and management issues

> Live situation record from CLSTR: https://clstr.news/situations/raccoon-infestation-and-management-issues
> Updated: 2026-08-23T06:37:51.000Z. Sources: 2. Developments: 3.

Raccoon populations in suburban areas, such as Ottawa, pose health and property risks due to their attraction to unsecured food, water, and nesting sites. These animals can spread diseases like rabies, raccoon roundworm, and leptospirosis through contact with bites, scratches, or contaminated waste.

Efforts to manage these nuisances include using deterrents like motion-activated sprinklers or scent-based repellents, such as predator urine or capsaicin, though high population density can limit their effectiveness. Raccoons also use urine, feces, and anal gland secretions for scent marking to communicate social status, identity, and territory. This behavior often leads to the establishment of communal latrines, which can intensify pungent, ammonia-like odors.

Beyond the nuisance of odor, raccoon waste presents severe biological hazards. While raccoon urine is not inherently toxic, it can carry the eggs of ‘Baylisascaris procyonis’, a common intestinal roundworm. These microscopic eggs are highly resilient and can survive in the environment for years. If ingested, the parasite can cause severe neurological damage in humans and other animals.

## Timeline

### 2026-08-23: Raccoon scent marking and associated health risks

Raccoons use urine and scent marking for social communication, but their waste can carry Baylisascaris procyonis, a roundworm capable of causing severe neurological damage.

2 sources. https://clstr.news/cluster/raccoon-scent-marking-and-associated-health-risks

### 2026-08-21: Raccoon deterrents and the impact of raccoon urine

Raccoons pose property and health risks through nesting and waste. While commercial repellents use scent and taste to deter them, their effectiveness varies, and their urine produces a strong ammonia odor.

2 sources. https://clstr.news/cluster/raccoon-deterrents-and-the-impact-of-raccoon-urine

### 2026-08-06: Raccoon Infestations Threaten Home Health in Ottawa

Raccoons attracted to food, water and shelter are causing health hazards and property damage in Ottawa; securing waste, fixing leaks and professional removal are recommended.

2 sources. https://clstr.news/cluster/raccoon-infestations-threaten-home-health-in-ottawa

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Cite as: Raccoon infestation and management issues. CLSTR, https://clstr.news/situations/raccoon-infestation-and-management-issues